US D537471 S1
FIG. 1 is a perspective view of our design for an operation panel according to the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side elevation view thereof; and,
FIG. 7 is a left side elevation view thereof.
This article is an operation panel for a facsimile, a copier, a scanner, or a printer or a data processing machine of any combination thereof.